Answers

Subtract 72/7 from 63/84

1^st number: 63/84, 2^nd number: 10 2/7

63/84 - 72/7 is -267/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   63/84 = 63 × 1/84 × 1 = 63/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   72/7 = 72 × 12/7 × 12 = 864/84
4. Subtract the two like fractions:
   63/84 - 864/84 = 63 - 864/84 = -801/84
5. After reducing the fraction, the answer is -267/28

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁶³/₈₄-⁷²/₁₄ ⁶³/₈₄-⁷²/₂₁ ⁶³/₈₄-⁷²/₃₅ ⁶³/₈₄-⁷²/₄₉

Subtract Fractions Calculator